<template>
  <div class="cc-decoration-5 col" :ref="ref">
    <svg :width="width" :height="height">
      <polyline fill="transparent" :stroke="mergedColor[0]" stroke-width="3" :points="line1Points">
        <animate
          attributeName="stroke-dasharray"
          attributeType="XML"
          :from="`0, ${line1Length / 2}, 0, ${line1Length / 2}`"
          :to="`0, 0, ${line1Length}, 0`"
          :dur="`${dur}s`"
          begin="0s"
          calcMode="spline"
          keyTimes="0;1"
          keySplines="0.4,1,0.49,0.98"
          repeatCount="indefinite"
        />
      </polyline>
      <polyline fill="transparent" :stroke="mergedColor[1]" stroke-width="2" :points="line2Points">
        <animate
          attributeName="stroke-dasharray"
          attributeType="XML"
          :from="`0, ${line2Length / 2}, 0, ${line2Length / 2}`"
          :to="`0, 0, ${line2Length}, 0`"
          :dur="`${dur}s`"
          begin="0s"
          calcMode="spline"
          keyTimes="0;1"
          keySplines=".4,1,.49,.98"
          repeatCount="indefinite"
        />
      </polyline>
    </svg>
  </div>
</template>

<script>
import { DecorationMixin } from 'boot/mixins/decoration';

export default {
  mixins: [DecorationMixin],
  name: 'CcDecoration5',
  props: {
    dur: {
      type: Number,
      default: 1.2,
    },
  },
  data() {
    return {
      ref: 'decoration-5',

      line1Points: '',
      line2Points: '',

      line1Length: 0,
      line2Length: 0,

      defaultColor: ['#3f96a5', '#3f96a5'],

      mergedColor: [],
    };
  },
  methods: {
    afterAutoResizeMixinInit() {
      const { calcSVGData } = this;

      calcSVGData();
    },
    calcSVGData() {
      const { width, height } = this;

      let line1Points = [
        [0, height * 0.2], [width * 0.18, height * 0.2], [width * 0.2, height * 0.4],
        [width * 0.25, height * 0.4],
        [width * 0.27, height * 0.6], [width * 0.72, height * 0.6], [width * 0.75, height * 0.4],
        [width * 0.8, height * 0.4], [width * 0.82, height * 0.2], [width, height * 0.2],
      ];

      let line2Points = [
        [width * 0.3, height * 0.8], [width * 0.7, height * 0.8],
      ];

      const line1Length = 30;
      const line2Length = 25;

      line1Points = line1Points.map((point) => point.join(',')).join(' ');
      line2Points = line2Points.map((point) => point.join(',')).join(' ');

      this.line1Points = line1Points;
      this.line2Points = line2Points;

      this.line1Length = line1Length;
      this.line2Length = line2Length;
    },
    onResize() {
      const { calcSVGData } = this;

      calcSVGData();
    },
  },
};
</script>

<style lang="stylus">
</style>
